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target/ppc: fix compile error in kvmppc_define_rtas_kernel_token()

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gcc9 reports :

In file included from /usr/include/string.h:494,
                 from ./include/qemu/osdep.h:101,
                 from ./target/ppc/kvm.c:17:
In function ‘strncpy’,
    inlined from ‘kvmppc_define_rtas_kernel_token’ at ./target/ppc/kvm.c:2648:5:
/usr/include/bits/string_fortified.h:106:10: error: ‘__builtin_strncpy’ specified bound 120 equals destination size [-Werror=stringop-truncation]
  106 |   return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190615081252.28602-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2019-06-15 10:12:52 +02:00 committed by David Gibson
parent 7abc0c6d35
commit 7701aeed0f
1 changed files with 1 additions and 1 deletions
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2
target/ppc/kvm.c
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@ -2650,7 +2650,7 @@ int kvmppc_define_rtas_kernel_token(uint32_t token, const char *function)
return -ENOENT;
}
strncpy(args.name, function, sizeof(args.name));
strncpy(args.name, function, sizeof(args.name) - 1);
return kvm_vm_ioctl(kvm_state, KVM_PPC_RTAS_DEFINE_TOKEN, &args);
}